EP 0620476 A1 19941019 - Photograpic lighting system using incident light meter.
Title (en)
Photograpic lighting system using incident light meter.
Title (de)
Photographisches Beleuchtungssystem, welches einen Belichtungsmesser für natürlich einfallendes Licht verwendet.
Title (fr)
Système d'illumination photographique mettant en oeuvre un posemètre pour lumière d'incidence.
Publication
Application
Priority
US 4814093 A 19930414
Abstract (en)
A photographic lighting system for use with a camera provides fill light from the direction of the camera to alleviate shadows in a photographic image obtained by the camera. The photographic lighting system includes an incident light sensor for sensing the incident light intensity on a subject to be photographed, an electric light for directing fill light toward the subject, and a control circuit for controlling the intensity of the fill light provided by the electric light in response to the sensed incident light intensity. The fill light is increased in intensity as the incident light intensity increases. The control circuit can also receive a distance input representative of the distance between the electric light and the subject and controls the fill light in response to the distance input such that the fill light intensity at the subject is substantially independent of the distance. A sensitivity input to the control circuit permits the fill light intensity to be compensated for the sensitivity of the camera. <IMAGE>
IPC 1-7
IPC 8 full level
G03B 15/035 (2006.01); G03B 7/16 (2006.01)
CPC (source: EP US)
G03B 7/16 (2013.01 - EP); G03B 15/05 (2013.01 - US)
Citation (search report)
- [XY] EP 0066383 A1 19821208 - POLAROID CORP [US]
- [YA] US 5049916 A 19910917 - O'SUCH WILLIAM R [US], et al
- [A] US 4772910 A 19880920 - FIELDS ROGER A [US]
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0620476 A1 19941019; EP 0620476 B1 20010103; DE 69426504 D1 20010208; DE 69426504 T2 20010927; JP H07199290 A 19950804; US 5384616 A 19950124
DOCDB simple family (application)
EP 94420085 A 19940314; DE 69426504 T 19940314; JP 7016294 A 19940316; US 4814093 A 19930414